Science: Insulation

insulation

Insulation
insulation

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COLD
ENERGY
FIRE
HEAT
HOT
INSULATOR
STOVE
SUN
TRANSFER
C F T E V E H L R
E S C T R D L O C
E M A I K K T W V
R E F S N A R T T
H O T T L K T E B
F I I U V N L O P
N U S T O V E L B
Y N G G E E Z Y F
I U Y G R E N E S
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